/Engine/Plugins/Experimental/Mutable/Source/CustomizableObjectPopulation/Classes/MuCOP/CustomizableObjectPopulation.h
Returns false if no generator was found.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="CustomizablePopulation") bool RegeneratePopulation ( int32 Seed, [TArray](API\Runtime\Core\Containers\TArray)< [UCustomizableObjectInstance](API\Plugins\CustomizableObject\MuCO\UCustomizableObjectInstance) * > & OutInstances, int32 NumInstancesToGenerate ) const